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Finding the Fourth Proportional to 133,785,690.80, 200,628,769.80 and 52,989,940.40

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Solution

The fourth proportional to 133,785,690.80, 200,628,769.80 and 52,989,940.40 is: 79,465,199.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,785,690.80 : 200,628,769.80 = 52,989,940.40 : x
  2. Step 2: Convert to fraction form
    133,785,690.80/200,628,769.80 = 52,989,940.40/x
  3. Step 3: Cross multiply
    133,785,690.80x = 200,628,769.80 × 52,989,940.40
  4. Step 4: Simplify right side
    133,785,690.80x = 10,631,306,554,227,320
  5. Step 5: Solve for x
    x = 10,631,306,554,227,320/133,785,690.80
  6. Step 6: Final answer
    x = 79,465,199.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.